1600 121ST ST SE 2016-01-01 MF Import

improve the 1995 p.m. peak hour LOS from an 'F' without improvements to a'D'. The existinq southbound left turn lane would remain. No revision to the geometrics of the east leg would be required. It will be necessary to relocate signal and pedestrian poles but no modification of the siqnal controller will be needed. At the 712th Street S.E./19th Avenue S.E. intersection it is recommended that a aecond left turn lane only lane be added to the northbound approach and that a riqht turn only lane be added to the southbound approach. St will also be necessary to provide an acceleration lane on the aest leq in the weatbound direction to accommodate the additional north and southbound lanes. These additions will improve the LOS to 'E' in 19g5, Various other reasonable mitiqations were attempted without success to improve the LOS to 'D' or better. At the 112th Street S.E./7th Avenue S.E. intersection it is �`� r_ecommended that an additional left turn lane be provided southbound. This may already be planned as a portion of the widening proqram on 7th Avenue S.E. An additional lane will be necessary on the east leg in the eastbound direction to accommodate this extra lane. This can be accomplished simply with restriping since the opposing lane for the eastbound left turn is presently a striped island. With this mitigation the LOS will be improved to 'C' in 19g5, At the 19th Avenue S.E./100th Street S.E. intersection it has been recommended by TPdE that an additional left turn lane be provided southbound and that a riqht turn lane be provided westbound. It is further recommended that the riqht turn lane westbound be yield controlled and that an accelezation lane be provided northbound on the north leg to accommodate this. It is also recommended that the signal be rebuilt to include a mast arm type of siqnal installation and that signal control be enhanced. This mitiqation will improve the 1995 LOS to 'D'. At the 19th Avenue S.E./E1 Capitan Way intersections, TP6E has recommended that an additional left turn lane eastbound be provided. This will improve the 1995 LOS to 'E'. However, as stated by TPdE and the city, it is likely that this signal will be included in WSDOT's improvement plans for the SR 526/I-5 interchanqe which may result in the total revision of the intersection. At the S.R. 526/Hroadway Avenue intersection, WSDOT is planninq a major project which wi.11 include a qrade separated interchange at the intersection and changes to the current interchange with I-5. This will result in a complete zevision of this EXNlllr I I Chnatopher Brovn � Aaaociates � 8i9 Ra�nier Avenue N.. c5uite .b?01 Rcnlon. WA 9805i-1380 (206) i7'!-ll88 �